prepare star rating field

Author: mutec

files/lib/system/form/builder/field/MCStarRatingFormField.class.php

@@ -0,0 +1,59 @@
+<?php
+
+namespace wcf\system\form\builder\field;
+
+use InvalidArgumentException;
+
+/**
+ * @author      Florian Gail
+ * @copyright   Florian Gail; 2018 - 2022; <https://www.mysterycode.de>
+ */
+class MCStarRatingFormField extends SingleSelectionFormField implements IMinimumFormField
+{
+    use TMinimumFormField;
+
+    protected int $bestRating;
+
+    public function __construct()
+    {
+        $this->minimum(1);
+        $this->bestRating(5);
+    }
+
+    protected function generateStars(int $amount): string
+    {
+        $result = '';
+
+        for ($i = 1; $i <= $amount; $i++) {
+            $result .= '⭐';
+        }
+
+        return $result;
+    }
+
+    public function populate()
+    {
+        $ratings = [];
+        for ($i = 0; $i <= $this->getBestRating(); $i++) {
+            $ratings[$i] = $this->generateStars($i);
+        }
+
+        $this->options($ratings);
+    }
+
+    public function bestRating(int $bestRating): self
+    {
+        if ($this->getMinimum() !== null && $bestRating < $this->getMinimum()) {
+            throw new InvalidArgumentException('Best rating cannot be less than minimum rating.');
+        }
+
+        $this->bestRating = $bestRating;
+
+        return $this;
+    }
+
+    public function getBestRating(): int
+    {
+        return $this->bestRating;
+    }
+}

templates/__mcStarRatingFormField.tpl

@@ -0,0 +1 @@
+{* todo *}